The Eighth Day / Dianne K. Salerni

In this first book in a new fantasy series, orphan Jax discovers on his thirteenth birthday that he has access to an eighth day of the week known as Grunsday. From that point on, Jax learns much more about where his fantastical abilities came from, tracing his roots all the way back to the time of King Arthur’s court. A thrilling fantasy series for fans of Harry Potter and Percy Jackson in grades 5 and up.